نتایج جستجو برای: shrimp hatchery effluent
تعداد نتایج: 23118 فیلتر نتایج به سال:
The Vibrio spp. are the most common and harmful shrimp pathogenic bacteria causing serious diseases of larval and postlarval stages in the hatchery. The Vibrio inhibitory activity of green algae Tetraselmis suecica has been reported in vitro (Austin and Day 1990).In these experiments, the inhibitory activity was assessed in vivo in a commercial shrimp hatchery of the white prawn Fenneropenaeus ...
Farmers of Bangladesh like to stock wild post-larvae (PL) Black tiger shrimp (Penaeus monodon). However, PL collection is detrimental aquatic biodiversity, and the supply hatchery sufficient. The study was conducted in Cox's Bazar, Bangladesh, compare quality aspects terms size variation, survival, tolerance, morphology.
Shrimp aquaculture production in much of the world is depressed by disease, particularly caused by luminous Vibrio and/or viruses. Antibiotics, which have been used in large quantities, are in many cases ineffective, or result in increases in virulence of pathogens and, furthermore, are cause for concern in promoting transfer of antibiotic resistance to human pathogens. Probiotic technology pro...
Bacterial diseases mainly due to vibriosis in Penaeid shrimp culture implicating several species of Vibrios. Vibrio harveyi is considered as an important causative agent of the systemic vibriosis, which occurs in any bio-fields. The virulence of this bacterium is due to the production and expression of several virulent factors such as hemolysin, cysteine and metalloprotease, phospholipases, exo...
The Application of Microalgae Feeding Regime on Whiteleg Shrimp Culture in Each Stage: A Mini Review
Feed management in shrimp culture aims to improve the quality of organisms. The application feeding regime has been developed determine best formulation diet order maximize growth rate and survival by increasing feed efficiency minimizing waste. is closely related understanding physiological morphological aspects from larval stage adult stage. success with will be a solution problem high costs ...
The impact on coastal ecosystems of suspended solids, organic matter, and bacteria in shrimp farm effluents is presented. Sites around Bahía de Kino were selected for comparative evaluation. Effluent entering Bahia Kino (1) enters Laguna La Cruz (2). A control site (3) was outside the influence of effluents. Water quality samples were collected every two weeks during the shrimp culture period. ...
The present study aimed to establish the information on protozoan diseases in Black tiger shrimp Penaeus monodon during the year 2012. Due to high levels of ciliate infestations can affect respiration, feeding, growth, survival and also irritation behaviour of larvae (zoea, mysis and post larvae) was observed. Protozoan diseases in P. monodon was global problem in hatcheries mainly affect the e...
A comparative study regarding prevalence and antimicrobial susceptibility of Vibrio species in the black tiger shrimp (Penaeus monodon Fabricius) culture environment as well as market samples were analyzed. Total Vibrio counts were found to range up to 2.5 × 10 cfu/gm and 60 cfu/gm in shrimp and Gher water samples, respectively. Results revealed that the total vibrio count were found to be high...
Several groups of bacteria were isolated and identified in an evaluation of the microbiological properties of a sewage treatment system involving the process of controlled eutrophication in a marine setting (J. G. Songer, N. M. Trieff, R. F. Smith, and D. Grajcer, 1974). Fecal coliforms, enterococci, Salmonellae, Shigellae, Vibrio parahaemolyticus, and Vibrio alginolyticus were studied at three...
Coastal aquaculture can contribute to eutrophication of receiving waters. New technologies and improved management practices allow the aquaculture industry to be more sustainable and economically viable. Current practices, however, do not provide an additional use for effluent water. Nitrogen, phosphorus and other effluent compounds could be valuable plant nutrients. Inflow and effluent water f...
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